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CITADEL ADVISORS LLC

Position in ALNY — Alnylam Pharmaceuticals, Inc.

CIK 1423053 MIAMI, FL

Position in ALNY

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$57,505,458
+$49,758,137 QoQ
Shares Held
191,029
+715.8% QoQ
Ownership
0.143%
of shares outstanding
% of Portfolio
0.04%
of 13F equity value
Holder Rank
#76
of 784 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in ALNY Over Time

Shares Held

Position Value (USD)

Derivatives in ALNY

reported options exposure · as of Jun 30, 2026
CallValue
$24,564,048
CallShares
81,600
PutValue
$12,793,775
PutShares
42,500

Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.

Position in Biotechnology

Healthcare · as of Jun 30, 2026

CITADEL ADVISORS LLC holds $6,088,670,159 across 436 Biotechnology names. ALNY ranks #26 (0.9% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in ALNY

Export CSV
50 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $24,564,048 81,600
2026-06-30 $12,793,775 42,500
2026-06-30 $57,505,458 191,029
2026-03-31 $7,747,321 23,415
2026-03-31 $12,308,364 37,200
2026-03-31 $16,742,022 50,600
2025-12-31 $15,293,220 38,459
2025-12-31 $22,944,405 57,700
2025-12-31 $35,828,265 90,100
2025-09-30 $32,284,800 70,800
2025-09-30 $101,160,408 221,843
2025-09-30 $22,070,400 48,400
2025-06-30 $12,815,337 39,300
2025-06-30 $19,663,227 60,300
2025-06-30 $196,044,981 601,199
2025-03-31 $1,143,804 4,236
2025-03-31 $22,546,670 83,500
2025-03-31 $13,933,032 51,600
2024-12-31 $13,742,104 58,400
2024-12-31 $15,387,626 65,393
2024-12-31 $24,307,523 103,300
2024-09-30 $37,184,056 135,200
2024-09-30 $6,582,017 23,932
2024-09-30 $42,244,608 153,600
2024-06-30 $34,578,900 142,300
2024-06-30 $89,251,227 367,289
2024-06-30 $62,037,900 255,300
2024-03-31 $5,975,608 39,984
2024-03-31 $38,408,650 257,000
2024-03-31 $20,609,155 137,900
2023-12-31 $28,060,706 146,600
2023-12-31 $21,265,651 111,100
2023-12-31 $12,757,284 66,649
2023-09-30 $16,771,370 94,700
2023-09-30 $19,392,450 109,500
2023-06-30 $5,615,196 29,563
2023-06-30 $17,645,426 92,900
2023-06-30 $20,361,568 107,200
2023-03-31 $20,900,587 104,336
2023-03-31 $29,947,840 149,500
2023-03-31 $22,315,648 111,400
2022-12-31 $27,092,100 114,000
2022-12-31 $342,216 1,440
2022-12-31 $40,638,150 171,000
2022-09-30 $24,559,632 122,700
2022-09-30 $35,948,736 179,600
2022-09-30 $16,527,610 82,572
2022-06-30 $52,316,395 358,700
2022-06-30 $26,588,455 182,300
2022-06-30 $1,122,169 7,694